First it keeps shutting itself down and make me hold my breath while it won't start up at all (after self-shutdown) without being plugged in to the wall outlet. And as if that is not enough, now it officially refuses to charge. It's been an hour and it stays at 14% (went to 15% but that's it!). My Ibook is only 14 months old, G4 1.2GHz OS X 10.3.9. The original battery was recalled last year so this replacement battery is less than a year old. Is it time to go home to Windows yet?